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Old 01-24-2013, 05:36 PM   #59 (permalink)
Gasoline Fumes
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Location: New York State
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CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
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Insight 5342 (no IMA) - '00 Honda Insight
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Quote:
Originally Posted by Potenza View Post
Wow, thanks for the quick reply. That was the parts diagram I had been looking at, but I found it a bit confusing as well. Looks like the intake spacers are still available, so I'll give those a shot.

My plan is to do the 1 intake valve, 2 exhaust valve setup. This is how it ran on my old SOHC VTEC del Sol with great effect. And by shifting low I never reached the 4-valve changeover.

But my Civic LX has a full-time 4v/cyl setup, and I'm looking to increase both low-end pull and fuel economy. I never shift over about 3100RPM. (It's an auto, so it doesn't always do as I like.) I'm thinking the 3v setup with its swirl effect will do the trick. If I like it, I will consider getting the cam permanently ground into the VTEC setup for the 2nd intake valve, to address the theoretical fuel puddling issue that Honda seemed concerned about. We'll see... cross that bridge when I get there.
Please post your 3-valve results here when you have them! I'm curious how it compares to my 2 valves.
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2000 Honda Insight
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2000 Honda Insight
2006 Honda Insight (parts car)
1988 Honda CRXFi
1994 Geo Metro

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